MISS would have used a Thor booster, then later an Atlas, to launch a single-man spacecraft into orbit. On June 25, 1958, the Air Force announced the following nine men selected to be astronauts for the program:[1]
Neil A. Armstrong (1930–2012), 27, NACA. The only member of the group to join the NASA Astronaut Corps. Flew on Gemini 8 and Apollo 11 missions; performed the first docking of two spacecraft, was the first—along with Buzz Aldrin—to land on the Moon, and was the first person to set foot on the Moon.
Joseph A. Walker (1921–1966), 37, NACA. The first member of the group to achieve outer space according to the FAI, and to enter space twice, on two X-15 test flights.